Cultivate Web Design Melbourne - Development Blog » shell

Find out which package to install when faced with a missing file/lib error

Chris Gunn — Thu, 04 Feb 2010 03:49:38 +0000

Get errors like this?

Warning: dl(): Unable to load dynamic library 'libwebpayclient.so' - libssl.so.4: cannot open shared object file:
Not sure which package to install? Run the code below to find out!
 sudo apt-get install apt-file
 sudo apt-file update
 apt-file search libssl.so

Search file contents recursively for a matching string

Chris Gunn — Mon, 30 Mar 2009 22:44:16 +0000

I use thing to find where an error message came from or to check if I left behind any debuging/testing the code.

grep -R "string to search for" ./*

more info at grep man page

List all files sorted by size in unix/linux (recursive)

Chris Gunn — Sat, 14 Mar 2009 02:19:32 +0000

du -ks ./* | sort -n -r